| 摘要 |
A method and an apparatus for controlling a fan motor which is arranged to arranged to cool an object to be cooled and to be controlled by an inverter whose output is connected to the fan motor. The method of the invention comprises steps of determining the temperature of the object to be cooled or a variable proportional to the temperature to form a control variable, controlling the frequency of the inverter output voltage on the basis of the control variable, and controlling the effective value of the inverter output voltage on the basis of the control variable. |
